Alright guys. First post here at m4carbine so please take it easy on me.
I've been having major issue with key holing at surprisingly close distances. This picture was taken today and all rounds were fired at about 25 yards.
This target was shot with Federal and Winchester brass and Monarch steel and brass cased ammo. As you can see there are some normal holes from bullet impact but lots of holes indicating tumbling. I believe I have determined that this issue isn't related to a particular brand or type of ammo but seems to happen to all brands.
I will detail my AR's setup:
Dpms upper, lower, and barrel (barrel has probably 5000+ rounds)
Spikes Tactical BCG
Commercial buffer tube with magpul CRT stock
JP Enterprises captured buffer/spring assembly
Midwest Industries 15" Gen2 SS hand guard
Smith Vortex FHMB
Troy micro gas block
Geissele SSA trigger group
Daniel Defense front and rear fixed iron sights
I know I gave more details than are necessary but if anyone has any idea why I'm having this key holing issue, any help would be greatly appreciated
-BTO-




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